Inventor

MISSAIRE GERHARD

3 patents

Patents

3 patents

US4611838ASep 16, 1986

Fluidtight pipe joint

MANNESMANN AG151 citations93

US4153283AMay 8, 1979

Casing joint

MANNESMANN AG59 citations91

US4414247ANov 8, 1983

Method for surface treatment of threading

MANNESMANN AG36 citations87